Display Device with Touch Panel

ABSTRACT

A display device with a touch panel includes the touch panel having a first substrate having a detection area to detect a coordinate and an outside area in which at least one external terminal is formed, a plurality of first lines to detect the coordinate in the detection area, a plurality of second lines to detect the coordinate in the detection area, wherein each of the plurality of first lines traverse each of the plurality of second lines. An organic emitting display panel is arranged under the touch panel, and a circular polarizing plate arranged at a side of the touch panel opposite to the organic emitting display panel. The organic emitting display panel, the touch panel, and the circular polarizing plate are arranged in this order.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a continuation application of U.S. application Ser.No. 13/966,857, filed Aug. 14, 2013, which is a continuation applicationof U.S. application Ser. No. 12/649,414, filed Dec. 30, 2009, now U.S.Pat. No. 8,519,969, the contents of which are incorporated herein byreference.

The present application claims priority from Japanese application JP2009-004874 filed on Jan. 13, 2009, the content of which is herebyincorporated by reference into this application.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a display device with a touch panel.

2. Background Art

As one of detection methods mainly adopted by a conventional displaydevice with a touch panel, there has been known a detection method whichdetects a change of light and a detection method which detects a changeof an electric characteristic. With respect to these detection methods,the detection method which detects a change of light has a drawback thatdetection accuracy is not stable.

On the other hand, as the detection method which detects a change of anelectric characteristic, there has been known a resistance film methodand a capacity method.

FIG. 20 shows a conventional capacity-type touch panel. A transparentelectrode TLINE which covers the whole surface of a detection region isformed on an inner surface of a glass substrate GSUB. When a usertouches a desired position of a touch panel from the outside of theglass substrate GSUB with his finger, capacity between the finger andthe transparent electrode TLINE is detected so that coordinates on whichthe finger is placed is recognized.

FIG. 21 shows a conventional resistance-film-type panel. A transparentelectrode TLINE which covers the whole surface of a detection region isformed on a glass substrate GSUB as a film on one side, a transparentelectrode TLINE is formed on a resin RESIN having light transmittingproperty as a film on another side, and this film is adhered to theglass substrate GSUB such that the transparent electrode TLINE on theresin RESIN faces the transparent electrode TLINE on the glass substrateGSUB in an opposed manner. To prevent the short-circuiting between therespective transparent electrodes TLINE, the transparent spacers SPACERSare arranged in plane so as to hold a fixed distance (several to severaltens μm).

Before the resistance-film-type touch panel shown in FIG. 21 isproposed, as described in JP-A-2002-342014 (patent document 1), therehas been known a method in which a transparent electrode is formed intostripe-shaped electrodes and these stripe-shaped transparent electrodesare made intersect with each other thus arranging intersecting portionsin a matrix array.

SUMMARY OF THE INVENTION

The method disclosed in patent document 1 uses the stripe-shapedtransparent electrodes and hence, to increase the detection accuracy, itis inevitably necessary to decrease a line width of the stripe-shapedtransparent electrode. However, the transparent electrode having anarrow line width exhibits a high resistance value and hence, thismethod cannot maintain desired detection accuracy. Further, when athickness of the transparent electrode is increased, it is necessary totake a taper formed by etching into consideration and hence, it isdifficult to decrease a gap between the transparent electrodes.

In view of the above-mentioned circumstances, the previously-mentionedresistance film method has been proposed. In this method, thetransparent electrode has high resistance and hence, by making use of apotential difference of voltages applied to the transparent electrodes,input points, that is, contact positions of the upper and lowertransparent electrodes are detected one-dimensionally, and suchapplication of voltages and detection of potential difference areperformed twice along an X axis and a Y axis so that two-dimensionalcoordinates are calculated.

However, the above-mentioned resistance film method has followingdrawbacks.

A: The driving principle of this method is based on the application ofhigh resistance property of the transparent electrode made of metaloxide and hence, when the transparent electrode is formed of a lowresistance film, a voltage drop becomes small so that the detectionbecomes impossible.

B: Since the transparent electrode has high resistance, large-sizing ofthe touch panel becomes difficult so that a size limit from a practicalpoint of view is considered 17 inches (approximately 200 mm×300 mm).

C: To detect two or more input points, it is necessary to increase thedetection frequency twice or more so that detection accuracy is lowered.

D: Patterning or forming of transparent electrodes are costly.

E: The transmissivity of the transparent electrode is limited toapproximately 75% to 80% in view of a problem attributed to opticaltransmissivity of the transparent electrode.

F: A partial region of a touch panel touched in a concentrated manner ina usual inputting operation. Particularly, when a user performsinputting using a touch pen or with his finger, an external force isapplied to input coordinates in a concentrated manner. Due to such anexternal force, the transparent electrode is bent using the inputcoordinates as the center and hence, a portion of the transparentelectrode in the vicinity of the input coordinates is liable to bedamaged.

G: Since the transparent electrode is made of metal oxide in general,the degradation of the transparent electrode which brings about theincrease of resistance of the transparent electrode per se is inevitablethus giving rise to a drawback with respect to reliability in lifetime.

H: It is necessary to detect a voltage drop by analogue detection andhence, a detection circuit is costly.

I: Flexible cables which connect the transparent electrodes and thecircuits are costly.

J: Electric current flows in the transparent electrode and hence, theresistance of the transparent electrode is increased.

K: The transparent electrode is not transparent and hence, coloringoccurs whereby a color range of a display panel is displaced.

In view of such drawbacks, applicants of the present applicationproposed a touch panel which adopts the new detection structure(Japanese Patent Application 2007-149884). However, according to such arelated art, since a plurality of lines are formed on a touch panel andhence, when a user moves a pen on an operation surface in a slidingmanner, the user feels the surface unevenness. To overcome thisdrawback, the inventors of the present invention have made extensivestudies to improve such a touch panel and have made a touch paneldisplay device which gives further excellent touch feeling to a user.

Accordingly, it is an object of the present invention to provide adisplay device with a touch panel which gives excellent touch feeling toa user.

(1) According to one aspect of the present invention, there is provideda display device with a touch panel which includes: a touch panel whichincludes a first substrate, a second substrate arranged to face thefirst substrate in an opposed manner with a gap formed therebetween, afirst electrode which is constituted of a plurality of metal linesformed on a surface of the first substrate which faces the secondsubstrate, and a second electrode formed on a surface of the secondsubstrate which faces the first substrate; a display panel which ismounted on the second substrate on a side opposite to the firstsubstrate; and a resin film which is adhered to the first substrate on aside opposite to the second substrate. According to the presentinvention, the resin film is adhered to the touch panel, the unevenessattributed to the first electrode is absorbed and hence, the touch panelcan give a user excellent touch feeling.

(2) In the display device with a touch panel having the constitution(1), the display panel may be a liquid crystal display panel whichexcludes a polarizing plate, a first polarizing plate may be adhered toa surface of the display panel opposite to the second substrate, and theresin film may constitute a second polarizing plate.

(3) In the display device with a touch panel having the constitution(1), the resin film may constitute a circular polarizing plate.

(4) In the display device with a touch panel having any one of theconstitutions (1) to (3), a cushion layer which is softer than the resinfilm may be further interposed between the resin film and the touchpanel.

(5) In the display device with a touch panel having any one of theconstitutions (1) to (3), an air cushion layer may be further interposedbetween the resin film and the touch panel.

(6) In the display device with a touch panel having any one of theconstitutions (1) to (3), a cushion layer which is softer than the resinfilm may be further interposed between the display panel and the touchpanel.

(7) In the display device with a touch panel having any one of theconstitutions (1) to (3), an air cushion layer may be further interposedbetween the display panel and the touch panel.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a plan view schematically showing a display device with atouch panel according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view schematically showing the displaydevice with a touch panel according to the embodiment of the presentinvention;

FIG. 3 is a cross-sectional view schematically showing a display devicewith a touch panel according to a modification 1 of the embodiment ofthe present invention;

FIG. 4 is a cross-sectional view schematically showing a display devicewith a touch panel according to a modification 2 of the embodiment ofthe present invention;

FIG. 5 is a plan view schematically showing a display device with atouch panel according to a modification 3 of the embodiment of thepresent invention;

FIG. 6 is a cross-sectional view schematically showing the displaydevice with a touch panel according to the modification 3 of theembodiment;

FIG. 7 is a cross-sectional view schematically showing a display devicewith a touch panel according to a modification 4 of the embodiment ofthe present invention;

FIG. 8 is a cross-sectional view schematically showing a display devicewith a touch panel according to a modification 5 of the embodiment ofthe present invention;

FIG. 9 is a schematic plan view of the touch panel;

FIG. 10 is a cross-sectional view of the touch panel;

FIG. 11 is an enlarged cross-sectional view of a second substrate SUB2within an AA region in FIG. 9;

FIG. 12 is a perspective view of the touch panel according to theembodiment of the present invention;

FIG. 13 is a perspective view of the touch panel according to theembodiment of the present invention;

FIG. 14 is a schematic plan view of the touch panel;

FIG. 15 is a schematic plan view of the touch panel;

FIG. 16 is a cross-sectional view of a substrate which constitutes thetouch panel;

FIG. 17 is a cross-sectional view of a substrate which constitutes thetouch panel;

FIG. 18 is a cross-sectional view of a substrate which constitutes thetouch panel;

FIG. 19 is a cross-sectional view of a substrate which constitutes thetouch panel;

FIG. 20 is a view for explaining the principle of a conventionalcapacity-type touch panel; and

FIG. 21 is a view for explaining the principle of a conventionalresistance-film-type touch panel.

DESCRIPTION OF THE PREFERRED EMBODIMENT

Hereinafter, an embodiment of the present invention is explained inconjunction with drawings.

FIG. 1 is a plan view schematically showing a display device with atouch panel according to the embodiment of the present invention. FIG. 2is a cross-sectional view schematically showing the display device witha touch panel according to the embodiment of the present invention.

The display device includes a touch panel (or referred to as “touchscreen”) 10. The touch panel 10 includes a first substrate 12, and asecond substrate 14 which is arranged to face the first substrate 12 inan opposed manner with a gap formed therebetween. On a surface of thefirst substrate 12 which faces the second substrate 14 in an opposedmanner, a first electrode 16 which is constituted of a plurality ofmetal lines is formed (omitted from FIG. 2). On a surface of the secondsubstrate 14 which faces the first substrate 12 in an opposed manner, asecond electrode 18 is formed (omitted from FIG. 2). The secondelectrode 18 is also constituted of a plurality of metal lines. Spacers20 are arranged between the first substrate 12 and the second substrate14 thus preventing the first electrode 16 and the second electrode 18from coming into contact with each other. The spacers 20 can be formedby screen printing.

When a user touches an outer surface of the first substrate 12 with hisfinger or a pen, the first substrate 12 is recessed, and the firstelectrode 16 and the second electrode 18 are brought into contact andare electrically connected with each other. The detail of the touchpanel 10 is described in the specification and drawings of JapanesePatent Application 2007-149884, and the content of the touch panel 10 isdescribed later.

The display device with a touch panel includes a display panel 22. Thedisplay panel 22 shown in FIG. 2 is a liquid crystal display panel(excluding a polarizing plate) which is constituted of a pair ofsubstrates with liquid crystal not shown in the drawing sandwichedtherebetween. The display panel 22 is mounted on the second substrate 14of the touch panel 10 on a side opposite to the first substrate 12. Afirst polarizing plate 24 is adhered to a surface of the display panel22 on a side opposite to the second substrate 14.

A resin film 26 is adhered to the first substrate 12 on a side oppositeto the second substrate 14. The resin film 26 constitutes a secondpolarizing plate (linear polarizing plate). That is, the liquid crystaldisplay panel (excluding polarizing plate) which constitutes the displaypanel 22 is arranged between the first polarizing plate 24 and the resinfilm 26 which constitutes the second polarizing plate. Duringtransmission of light through the touch panel 10, even when thebirefringence of light is generated due to the first electrode 16 andthe second electrode 18 so that the polarization surfaces of light arenot aligned, the resin film 26 which constitutes the second polarizingplate is arranged outside the touch panel 10 and hence, it is possibleto align the polarization surfaces after light passes through the touchpanel 10 thus realizing the liquid crystal display through the resinfilm 26.

In the touch panel 10 according to this embodiment, the first electrode16 is constituted of the plurality of metal lines. Accordingly, when auser touches the outer surface of the first substrate 12 with his fingeror a pen in a sliding manner, due to convex portions formed by the firstelectrode 16 and the second electrode 18 and concave portions each ofwhich is formed between neighboring metal lines, a user feels theunevenness of the outer surface. However, the resin film 26 is adheredto the touch panel 10 and hence, the unevenness attributed to the firstelectrode 16 (also attributed to the second electrode 18) can beabsorbed whereby the user can enjoy excellent touch feeling.

FIG. 3 is a cross-sectional view schematically showing a display devicewith a touch panel according to a modification 1 of the embodiment ofthe present invention. In the modification 1, a cushion layer 28 isarranged between the resin film 26 and the touch panel 10 (firstsubstrate 12). The cushion layer 28 is softer than the resin film 26,and is made of silicone, for example. The cushion layer 28 istransparent. According to the modification 1, the user can enjoysmoother writing feeling due to the provision of the cushion layer 28.

FIG. 4 is a cross-sectional view schematically showing a display devicewith a touch panel according to a modification 2 of the embodiment ofthe present invention. In the modification 2, an air cushion layer 30(that is, space) is formed between the touch panel 10 (first substrate12) and the resin film 26. The first substrate 12 and the resin film 26are arranged with a gap formed therebetween by way of a sealing material32 so that the air cushion layer 30 is hermetically sealed. The sealingmaterial 32 may have a cushion property. According to the modification2, the user can enjoy smoother writing feeling due to the provision ofthe air cushion layer 30.

FIG. 5 is a plan view schematically showing a display device with atouch panel according to a modification 3 of the embodiment of thepresent invention. FIG. 6 is a cross-sectional view schematicallyshowing the display device with a touch panel according to themodification 3 of the embodiment. Although a display panel 122 shown inFIG. 6 is an organic electroluminescence display panel (hereinafter,referred to as an “organic EL display panel”), the display panel 122 maybe a field emission display panel. The touch panel 10 is adhered to adisplay screen of the display panel 122, and a resin film 126 is adheredto the touch panel 10. The resin film 126 is a circular polarizing plateand hence, the resin film 126 can enhance the visibility by preventingthe reflection of light.

FIG. 7 is a cross-sectional view schematically showing a display devicewith a touch panel according to a modification 4 of the embodiment ofthe present invention. Although the display panel 122 shown in FIG. 7 isan organic EL display panel, the display panel 122 may be a fieldemission display panel. In the modification 4, the cushion layer 28 isarranged between the display panel 122 and the touch panel 10 (secondsubstrate 14). The cushion layer 28 is softer than the resin film 126.The cushion layer 28 is transparent. According to the modification 4,the feeling of unevenness that a user perceives is further alleviated bythe cushion layer 28 arranged below the touch panel 10 so that the usercan enjoy smooth writing feeling.

Here, a liquid crystal display panel may also be used as the displaypanel 122 shown in FIG. 7. In this case, in place of the organic ELdisplay panel, a liquid crystal display panel to which the firstpolarizing plate 24 (see FIG. 3) is adhered on a side opposite to thecushion layer 28 is disposed, and the second polarizing plate is used asthe resin film 126.

FIG. 8 is a cross-sectional view schematically showing a display devicewith a touch panel according to a modification 5 of the embodiment ofthe present invention. Although the display panel 122 shown in FIG. 8 isan organic EL display panel, the display panel 122 may be a fieldemission display panel. In the modification 5, the air cushion layer 30(that is, space) is formed between the touch panel 10 (second substrate14) and the display panel 122. The second substrate 14 and the displaypanel 122 are arranged with a gap formed therebetween by way of thesealing material 32 so that the air cushion layer 30 is hermeticallysealed. The sealing material 32 may have a cushion property. Accordingto the modification 5, the feeling of unevenness which a user perceivesis further alleviated by the air cushion layer 30 arranged below thetouch panel 10 so that the user can enjoy the smooth writing feeling.

Here, a liquid crystal display panel may also be used as the displaypanel 122 shown in FIG. 8. In this case, in place of the organic ELdisplay panel, a liquid crystal display panel to which the firstpolarizing plate 24 (see FIG. 4) is adhered on a side opposite to theair cushion layer 30 is disposed, and the second polarizing plate isused as the resin film 126.

[Touch Panel]

The touch panel of present invention may combine with a touch paneldescribed in the specification and drawings of Japanese PatentApplication 2007-149884. The content of the touch panel is explainedhereinafter.

[Wiring Layout Mode 1]

FIG. 9 is a schematic plan view of the touch panel of this mode whichadopts the touch panel described in the specification and drawings ofJapanese Patent Application 2007-149884. The touch panel of thisembodiment includes: a first substrate SUB1 and a second substrate SUB2which are resin films made of polyethylene terephthalate (PET); a firstperipheral circuit SC1; a second peripheral circuit SC2; a power source;and a detection signal output terminal.

The first substrate SUB1 and the second substrate SUB2 are flexibleprinted circuit boards formed as follows. That is, a PET film and acopper foil having a film thickness reduced to 10 μm or less by a coldrolling process are adhered to each other using a decorative steel sheettechnique. Thereafter, using an etching technique in which an etchant isejected at high temperature and high pressure, metal is processed intostripe-shaped metal lines (wiring) (a first electrode and a secondelectrode) each having a taper angle of 80 degrees to 90 degreesrespectively. The first substrate SUB1 and the second substrate SUB2 arearranged so that their respective metal lines face each other in anopposed manner and that the extending direction of the metal lines onthe first substrate SUB1 and extending direction of the metal lines onthe second substrate SUB2 intersect with each other.

The first peripheral circuit SC1 is connected to the first substrateSUB1, and sequentially selects the metal lines by line so as tosequentially input a voltage to these lines from the power supply. Thesecond peripheral circuit SC2 is connected to the second substrate SUB2,and sequentially selects the metal lines by line so as to sequentiallydetect a voltage to these lines from the power supply.

FIG. 10 is a cross-sectional view of a touch panel of this embodiment.The touch panel includes the first substrate SUB1, the second substrateSUB2 and spacers SPACER. The second substrate SUB2 is fixed to the firstsubstrate SUB1 using a sealing material not shown in the drawing by wayof the spacers SPACER.

FIG. 11 is an enlarged cross-sectional view of the second substrate SUB2within an AA region in FIG. 9. As described previously, metal linesMLINE are arranged on the polyethylene terephthalate (PET) film.

According to this embodiment of the present invention, by adhering resinfilms provided with metal lines to each other by way of the spacers, thebasic recognition structure can be realized, thus making it possible tomanufacture an inexpensive touch panel which allows high-speedmultipoint inputting and exhibits high durability. Further, a brightdisplay can be realized by reducing a width of the metal line into lessthan 50% of the wiring pitch of the metal lines.

By providing the spacers in the gap, it is possible to ensure a uniformgap between the substrates SUB1, SUB2. Further, a maximum width of aplanar shape of the spacer as viewed from the substrate direction is setlarger than the wiring pitch of the metal lines. Accordingly, it ispossible to prevent short-circuiting between the metal lines which faceeach other in an opposed manner attributed to the deformation of theresin film substrate, and it is also possible to suppress erroneousrecognition of the touch panel. Further, a maximum width of a planarshape of the spacer as viewed from the substrate direction is set largerthan the wiring pitch of the metal lines and hence, a possibility ofshort-circuiting can be reduced. Further, different from lines made ofITO, the metal lines do not allow light to pass therethrough.Accordingly, the width of the metal line is set to less than 50% of thewiring pitch of the metal wiring so as to prevent the reduction oftransmissivity. By setting the wiring width to 13 to 20 μm, aninexpensive photo mask is available. The metal line is formed of anopaque metal film and can be made of carbon (C), nonferrous metal suchas copper (Cu), stainless steel (SUS) or iron (Fe) besides aluminum(Al). As the resin used for forming the first substrate SUB1 and thesecond substrate SUB2, it is possible to use triacetyl cellulose (TAC)besides polyethylene terephthalate (PET). Other materials may be alsoused provided that a film made of such materials exhibits lowbirefringence in the same manner as the above-mentioned materials.

According to the embodiment of the present invention, a fine wiringpattern made of metal can sufficiently achieve the high definition of300 lpi (line per inch). That is, the wiring pattern of this embodimentcan increase the resolution thereof ten times or more compared to theresolution of a conventional example which is approximately 10 ppi(point per inch). In addition, the fine metal wiring pattern can bemanufactured even when the metal line has a width of 10 μm and athickness of approximately 10 μm. Therefore, by designing the finewiring pattern such that the resolution of approximately 100 lpi isobtained, it is possible to improve the transmissivity of theresist-film-type touch panel compared to transmissivity of theconventional resist-film-type touch panel.

Although there may be a problem in terms of cost, the metal wiring canbe manufactured not only by etching but also by precipitation, platingor the like.

To set forth the advantageous effects brought about by this embodimentof the present invention, they are as follows.

(1) With the use of the metal lines or metal wiring which are subject toaddressing, a plurality of points can be detected simultaneously.

(2) Due to the advantageous effects set forth in (1), the detection canbe performed by a digital circuit leading to the reduction of cost.

(3) Patterning of the transparent electrode becomes unnecessary leadingto the reduction of cost.

(4) The metal wiring pattern and the flexible cable pattern can beformed simultaneously leading to the reduction of cost and theenhancement of reliability.

(5) The metal lines exhibits low resistance and hence, it is possible toincrease a size of the touch panel to 40 inches or more (diagonally 1meter or more) thus expanding an application of the display device witha touch panel to an area where mounting of a touch panel on a displaydevice is difficult conventionally.

(6) It is sufficiently possible for the metal wiring to have adefinition of 300 lpi or more and hence, the resolution can be increased10 times or more compared to the current resolution of approximately 10ppi.

(7) By using the above-mentioned high resolution and function ofdetecting a plurality of points simultaneously, it is possible todistinguish the difference in an object to be inputted to the touchpanel or a method for inputting an object to the touch panel. Forexample, the difference between a stylus and a finger can bedistinguished based on the difference in the number of detection points.

(8) By changing the color of the above-mentioned metal lines into black,it is possible to increase a contrast of a display such as a liquidcrystal display on which a touch panel is mounted.

(9) The coordinate detection is performed using the metal lines (eachline having a thickness of 10 μm) and hence, the reliability in lifetimesuch as the number of detection times is increased 10 times or morecompared to the conventional transparent electrode (having a thicknessof several hundred nm).

(10) The metal lines exhibit low resistance and hence, the detection canbe performed digitally. Accordingly, this embodiment can realize ahigh-speed and high-definition detection whose detection speed anddetection accuracy are approximately 100 times or more higher thancorresponding detection speed and detection accuracy of a conventionalanalog detection mechanism adopting a resistive film system.

[Wiring Layout Mode 2]

FIG. 12 is a perspective view of another touch panel according to thismode. The wiring layout mode 2 is a modification of wiring layoutmode 1. In this mode, wirings for detection which face each other in anopposed manner are changed in structure. FIG. 12 differs from FIG. 9 inthat a transparent electrode made of ITO is used as the wiring arrangedon the first substrate SUB1, and the ITO covers a whole surface of adetection area. By using this mode, it is possible to realize theenhancement of reliability, the increase of a detection speed, and asimple multipoint detection mechanism.

[Wiring Layout Mode 3]

FIG. 13 is a perspective view of another touch panel according to thismode. The wiring layout mode 3 of this mode is a modification of thewiring layout mode 1. In this mode, wirings for detection which faceeach other in an opposed manner are changed in structure. FIG. 13differs from FIG. 12 in that the wiring arranged on the second substrateSUB2 is formed of a mesh of metal lines. By forming the metal wiringpattern as the mesh (lattice), the touch panel can be formed as asubstitute for the resistance film. Accordingly, this mode can mainlycontribute to the increase of the detection speed and the enhancement ofreliability. In addition, by using two-dimensional patterning, themultipoint detection mechanism can be realized with a high speed andhigh accuracy even in combination with a conventional transparentelectrode system. Further, although there may be a problem in terms ofcost, a system which overcoats a fine metal pattern section with atransparent electrode is effective to realize large-sizing of a displaydevice.

[Wiring Layout Mode 4]

FIG. 14 is a schematic plan view of a touch panel according to amodification of this mode. FIG. 14 differs from FIG. 9 in that aterminal PAD for combining a plurality of metal lines MLINE is providedin order to detect voltages of the plurality of metal lines MLINEsimultaneously, and a detection signal is outputted from each terminalPAD. When the coordinate detection of high accuracy is unnecessary, theplurality of metal lines MLINE are combined so as to enhance arecognition rate. This mode is applicable to the stripe-shaped metalwiring in the wiring layout modes 1 and 2.

[Wiring Layout Mode 5]

FIG. 15 is a schematic plan view of a touch panel according to amodification of this mode. FIG. 15 differs from FIG. 9 in that theplurality of metal lines MLINE are made to extend up to externalterminals formed on a resin while gradually decreasing a wiring pitchoutside a detection area. In other words, without forming the externalterminals and lines MLINE-F extending up to the external terminals on asubstrate different from the base film, the external terminals and linesMLINE-F are formed on the same base film on which the plurality of metallines MLINE are formed. This mode is applicable to the stripe-shapedmetal wiring in the wiring layout modes 1 to 4. By adopting the wiringlayout modes 1 to 4 in this manner, it is possible to simultaneouslyform the metal pattern and the flexible cable pattern for connectionwith circuits. A touch panel section and flexible cables are formed onthe integral continuous resin thus realizing the reduction of the numberof parts, the enhancement of reliability in connection, and thereduction of cost.

[Wiring Layout Mode 6]

FIG. 16 is a cross-sectional view of a substrate constituting a touchpanel according to a modification of this mode. FIG. 16 differs fromFIG. 11 in that stripe-shaped transparent lines TUNE having the samepattern as the pattern of the metal lines MLINE are arranged under themetal lines MLINE. This mode is applicable to the stripe-shaped metalwiring in the wiring layout modes 1 to 5.

[Wiring Layout Mode 7]

FIG. 17 is a cross-sectional view of a substrate constituting a touchpanel according to a modification of this mode. FIG. 17 differs fromFIG. 11 in that the transparent wiring (electrode) TLINE which covers awhole surface of a detection area is arranged under the metal linesMLINE. This mode is applicable to the stripe-shaped metal wiring in thewiring layout modes 1 to 5.

[Wiring Layout Mode 8]

FIG. 18 is a cross-sectional view of a substrate constituting a touchpanel according to a modification of this mode. FIG. 18 differs fromFIG. 11 in that the transparent wiring (electrode) TLINE which covers awhole surface of a detection area is arranged above the metal linesMLINE. This mode is applicable to the stripe-shaped metal wiring in thewiring layout modes 1 to 5.

[Wiring Layout Mode 9]

FIG. 19 is a cross-sectional view of a substrate constituting a touchpanel according to a modification of this mode. FIG. 19 differs fromFIG. 11 in that an inner-surface reflection preventive film REF made ofa SiO₂ thin film which covers a whole surface of a detection area isarranged under the metal lines MLINE. This mode is applicable to thestripe-shaped metal wiring in the wiring layout modes 1 to 5. Aconventional touch panel uses transparent electrodes thus pushing up amanufacturing cost. According to this mode, since the inner-surfacereflection preventive film can be manufactured at a low cost, it ispossible to manufacture a display device which satisfy both high displayquality and a low manufacturing cost.

The present invention is not limited to the above-mentioned embodimentand modifications, and various other modifications are conceivablewithout departing from the gist of the present invention. For example,the constitution explained in the embodiment can be replaced with theconstitution substantially equal to the above-mentioned constitution,the constitution which can achieve the same manner of operation andadvantages as the above-mentioned constitution or the constitution whichcan achieve the same object as the above-mentioned constitution.

What is claimed is:
 1. A display device with a touch panel comprising:the touch panel including a first substrate having a detection area todetect a coordinate and an outside area in which at least one externalterminal is formed, a plurality of first lines to detect the coordinatein the detection area, a plurality of second lines to detect thecoordinate in the detection area, each of the plurality of first linestraversing each of the plurality of second lines; an organic emittingdisplay panel under the touch panel; and a circular polarizing platearranged at a side of the touch panel opposite to the organic emittingdisplay panel; wherein the organic emitting display panel, the touchpanel, and the circular polarizing plate are arranged in this order. 2.A display device with a touch panel according to claim 1, wherein eachof the plurality of second lines and the plurality of first lines ismade of metal; and wherein each of the plurality of first lines is blackin color.
 3. A display device with a touch panel according to claim 2,wherein the touch panel includes a plurality of wiring groups; whereineach of plurality of wiring groups has some of the first lines; andwherein some of the first lines in each of plurality of wiring groupsare bonded with each other.
 4. A display device with a touch panelaccording to claim 2, wherein a transparent conductive film overlays theplurality of the second lines; and wherein the transparent conductivefilm is electrically connected to the plurality of the second lines. 5.A display device with a touch panel according to claim 3, wherein atransparent conductive film overlays the plurality of the first lines,and wherein the transparent conductive film is electrically connected tothe plurality of the first lines.
 6. A display device with a touch panelaccording to claim 2, wherein a transparent conductive film underlaysthe plurality of the second lines, and wherein the transparentconductive film is electrically connected to the plurality of the secondlines.
 7. A display device with a touch panel according to claim 3,wherein a transparent conductive film underlays the plurality of thefirst lines, and wherein the transparent conductive film is electricallyconnected to the plurality of the first lines.
 8. A display device witha touch panel according to claim 1, wherein the touch panel is aresistance-film-type touch panel.
 9. A display device with a touch panelaccording to claim 1, further including: a first adhesive layer betweenthe touch panel and the organic emitting display panel; and a secondadhesive layer between the touch panel and the circular polarizingplate; wherein the touch panel and the organic emitting display panelare fixed with each other by the first adhesive layer, and the touchpanel and the circular polarizing plate are fixed with each other by thesecond adhesive layer.